Comment # 44 on bug 1126480 from Josua Mayer

Sorted out my version issue. Final report:
4.12.14-lp151.25.3 works fine
4.12.14-lp151.25.4 breaks nouveau
4.12.14-lp151.25.4 works fine WITH MODULES FROM 4.12.14-lp151.25.3